| Autor: |
Yan Cao, Ibrahim B. Mansir, Pradeep Kumar Singh, H. Elhosiny Ali, Azher M. Abed, Adel M. El-Refaey, Ayman A. Aly, Dinh Tuyen Nguyen, Makatar Wae-hayee, Duy Cuong Tran |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Ain Shams Engineering Journal, Vol 14, Iss 9, Pp 102122- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2090-4479 |
| DOI: |
10.1016/j.asej.2023.102122 |
| Popis: |
Free convection of Fe3O4-water inside the porous enclosure was investigated in the presence of magnetic fields. The SIMPLE algorithm was employed to solve the equations based on FVM. The inner wall of enclosure was considered in the constant flux and that of outer wall were at a constant temperature, respectively. Also, two other walls are thermal insulation and the radiation reflects to inner semi-annulus. An electric current coil for producing a magnetic field is wrapped around the semi-annulus. The effects of Rap=10and1000, the concentration (φAve=0,0.01and0.03), porosities (ε=0.4and0.7) and magnetic numbers (0≤Mn≤8×107) are investigated considering first laws of thermodynamics. The findings revealed that the mean Nusselt number has direct relation with the magnetic number, porosity, Rap and concentration, respectively. Moreover, increasing volume fraction from 0.01 to 0.03 in high magnetic number enhanced the Nusselt number by 32 %. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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